Lenovo Thinkpad A275 Hardware Maintenance Manual page 46

Symptom or error
1802
Unauthorized network card is plugged in—Turn off and
remove the network card.
1820
More than one external fingerprint reader is attached.
Power off and remove all but the reader that you set up
within your main operating system.
2100
Detection error on HDD0 (Main HDD)
2101
Detection error on SSD1 (M.2)
2110
Read error on HDD0 (Main HDD)
2111
Read error on SSD1 (M.2)
2200
Machine Type and Serial Number are invalid.
2201
Machine UUID is invalid
40
A275 Hardware Maintenance Manual
FRU or action, in sequence
1. Remove network card.
2. Replace the system board.
Remove all but the reader that you set up for the
authentication.
1. Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
1. Reseat the M.2 solid-state drive.
2. Replace the M.2 solid-state drive.
3. Replace the system board.
1. Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
1. Reseat the M.2 solid-state drive.
2. Replace the M.2 solid-state drive.
3. Replace the system board.
Replace the system board.
Replace the system board.